As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AS POWER WAS PUSHED UP FOR TAKEOFF ABOVE 1.4 EPR TAKEOFF WARNING HORN SOUNDED INTERMITTENT TONE. TAKEOFF WAS DISCONTINUED AT AROUND 20 - 30 KTS. A CHECK SHOWED AIRCRAFT CONFIGURATION PERFECTLY NORMAL, FLAPS 5, SPEEDBRAKE DOWN, TRIM 5.0 ETC. AFTER DEPARTING RUNWAY SPEEDBRAKE WAS CYCLED UP AND DOWN, THEN TWO RUNUPS WERE MADE UP TO 1.5 EPR WITH NO WARNING HORN. REPLACED SPOILER TAKEOFF WARNING SWITCH PER M/M. PERFORMED TAKEOFF WARNING TEST PER M/M 31-26-0.